MLX91221KDF-ABF-075-RE Melexis Technologies NV[All Explained]

What is the MLX91221KDF-ABF-075-RE?

The MLX91221KDF-ABF-075-RE is a precise Hall-effect current sensor developed by Melexis Technologies NV, tailored for contactless current sensing applications.

What is the MLX91221KDF-ABF-075-RE?

Features of the MLX91221KDF-ABF-075-RE

1. Integrated Hall Effect Sensor: The MLX91221 detects current without coming into contact with it by measuring the magnetic field produced by current flow using Hall effect technology.

2. High Sensitivity: Because of its great sensitivity, the sensor can descry indeed veritably small currents with delicacy, which is pivotal for operations that need precise current dimension.

3. Wide Operating Temperature Range: It can serve in a wide variety of temperatures, generally in severe conditions like automotive operations, from-40°C to 150°C.

4. Analog Output: An analog voltage output proportionate to the measured current is produced by the sensor. This makes it simple to integrate into microcontrollers or analog- to- digital converters(ADCs).

5. Low Power Consumption: The energy-effective design of the MLX91221 is pivotal for operations where a low energy consumption is needed.

6. Accuracy and Linearity: Throughout its whole functional range, the sensor exhibits good delicacy and linearity, enabling accurate current dimension.

7. Robust Packaging: Because of its compact design and small, ruggedized housing (often SMD), the device is easy to install.

8. Automotive Qualified: Satisfies AEC-Q100 certification requirements for battery management systems (BMS), which include energy management and engine control, in automotive applications.

MLX91221KDF-ABF-075-RE pinout

The MLX91221KDF-ABF-075-RE is a magnetic field sensor from Melexis. Here’s a typical pinout for this device:

1. VDD - Supply Voltage

2. GND - Ground

3. OUT - Analog Output

4. NC - No Connection (not connected internally)

Key Specifications of the MLX91221KDF-ABF-075-RE

Type	Description
Category	Sensors, Transducers Current Sensors
Mfr	Melexis Technologies NV
Series	-
Packaging	Tape & Reel (TR)
Part Status	Active
For Measuring	AC/DC
Sensor Type	Hall Effect
Current - Sensing	75A
Number of Channels	1
Output	Fixed, Voltage
Sensitivity	16.67mV/A
Frequency	DC ~ 300kHz
Linearity	±0.6%
Accuracy	-
Voltage - Supply	3.135V ~ 3.465V
Response Time	2µs
Current - Supply (Max)	26mA
Operating Temperature	-40°C ~ 125°C
Polarization	Bidirectional
Mounting Type	Surface Mount
Package / Case	16-SOIC (0.295", 7.50mm Width)
Supplier Device Package	16-SOIC
Base Product Number	MLX91221

MLX91221KDF-ABF-075-RE

Working Principle of the MLX91221KDF-ABF-075-RE

Melexis created a Hall effect grounded current sensor called the MLX91221KDF- ABF-075-RE. The sensor is extensively employed in consumer electronics, automotive, and artificial operations because of itsnon-intrusive design and excellent perfection of current dimension.

Working Principle

1. Hall Effect Sensing:

- ABF-075-RE-MLX91221KDF The glamorous field produced by current flowing through a captain can be measured using the Hall effect.

- A glamorous field is created girding a captain when current overflows through it. This glamorous field's strength is directly related to the current.

- The device's Hall effect sensor senses this glamorous field and, grounded on how strong the glamorous field is, generates a voltage output that is used to calculate how important current is flowing through the conductor.

2. Integrated Signal Conditioning:

- To provide a steady and precise output signal, the sensor's signal conditioning circuit processes and amplifies the Hall voltage.

- The device is simple to connect to microcontrollers or other analog input systems since it is made to deliver an analog voltage proportionate to the observed current.

3. High Sensitivity and Accuracy:

- The MLX91221 is designed to provide high sensitivity, meaning it can detect low levels of magnetic fields corresponding to small currents.

- The accuracy is enhanced by the integrated signal conditioning and temperature compensation, ensuring that the output is stable across different operating conditions.

4. Isolation:

- One of the advantages of using Hall-effect sensors like the MLX91221 is the electrical isolation between the sensor and the conductor being measured.

- This is particularly useful in high-voltage applications where direct electrical connection would be hazardous.

Applications of the MLX91221KDF-ABF-075-RE

Automotive Hall Effect Sensors
Current Sensing
Speed and Position Sensing
Reed Switch Replacement
Proximity Sensing
Power Steering Systems
Smart Metering
Automated Assembly Lines
Robotics
Home Appliances
Consumer Electronics
Medical Equipment
HVAC Systems
Electric Vehicles
Industrial Safety Systems
Battery Management Systems
Aircraft Systems
Consumer Gadgets
Smart Home Devices

Package and Design of the MLX91221KDF-ABF-075-RE

The MLX91221KDF-ABF-075-RE is a magnetic angle sensor from Melexis. Here's a brief overview of its package and design:

Package:

Type: The MLX91221KDF-ABF-075-RE is typically housed in a 3x3 mm QFN-16 package.

Pin Count: 16 pins.

Lead Finish: Usually with a lead-free finish to comply with RoHS standards.

Thermal Resistance: Designed for efficient heat dissipation to handle various operating temperatures.

Design:

Sensor Type: It’s a magnetic angle sensor designed for measuring angles using the magnetic field.

Output: The sensor provides a digital output, making it suitable for integration into various electronic systems.

Accuracy: Gives extremely accurate angle readings, which is pivotal for operations that need to detect angles precisely.

Operating Temperature: Functions, depending on the type, over a broad temperature range of-40°C to 125°C.

Advantages of the MLX91221KDF-ABF-075-RE

High Sensitivity
Wide Operating Range
Compact Form Factor
Low Power Consumption
High Accuracy
Robust Performance
Ease of Integration
Flexible Output Options
Temperature Stability
Low Noise
Fast Response Time
Built-In Diagnostic Features
High Resolution
Durability
Versatile Applications

Part Number Breakdown

- MLX91221: Series identifier.

- KDF-ABF: Indicates specific configuration and features.

- 075: Likely refers to the sensitivity or current range.

- RE: Denotes packaging type, often referring to reel packaging for automated assembly.

Manufacturer

- Melexis Technologies NV: A top provider of microelectronic integrated circuit solutions for industrial and automotive uses.

What type of sensor is the MLX91221KDF-ABF-075-RE?

- The linear Hall effect sensor is used to measure magnetic fields.

What is the primary application of this sensor?

- This sensor is generally employed in a variety of artificial and automotive operations, including current discovery, position sensing, and speed discovery.

What is the operating temperature range of the MLX91221KDF-ABF-075-RE?

- The functional temperature range of the sensor is-40°C to 150°C.

What is the supply voltage range for this sensor?

- The force voltage range for the sensor to serve is 3.0 V to 5.5 V.

What is the output type of the MLX91221KDF-ABF-075-RE?

- It provides an analog voltage output commensurable to the glamorous field strength.

What are the key features of this sensor?

- The sensor's strong linearity, minimal drift, and high magnetic field detection accuracy are its distinguishing features. For consistent functioning, temperature adjustment is also built in.

Can this sensor be used in automotive applications?

- The sensor is made to misbehave with automotive norms and is suitable for use in automotive operations including position sensing and machine control.

What is the sensitivity of the sensor?

- The datasheet normally specifies the accuracy; yet, they are typically made to precisely identify minute variations in magnetic fields.

How do I connect the MLX91221KDF-ABF-075-RE to my circuit?

- The sensor data sheet contains instructions and detailed wiring diagrams. In essence, the output, ground, and power pins of the sensor must be connected to the measurement circuit.